Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 4

Full Moon 100%

15:32

09:11

16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 OK
00 Good
01 OK
02 OK
03 OK
04 Bad
05 OK
06 OK
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:56, Set: 15:45, Transit: 11:50. Moon - Rise: 15:32, Set: 09:11. Civil Dark: 16:26 - 07:15. Nautical Dark: 17:10 - 06:31. Astro Dark: 17:52 - 05:49

Total Clouds (% Sky Obscured)

100
100
100
100
92
80
57
36
11
13
25
36
41
35
37
95
100
94
56
63
71
99
100
100

Low Clouds (% Sky Obscured)

100
84
77
64
51
48
36
26
11
13
25
36
41
35
37
35
41
31
33
32
32
32
33
38

Medium Clouds (% Sky Obscured)

100
100
100
99
92
80
0
0
0
0
0
0
0
0
0
0
40
39
54
63
71
92
100
100

High Clouds (% Sky Obscured)

100
100
80
0
0
0
0
0
0
0
0
0
0
0
2
34
100
85
56
63
14
70
97
63

ISS Passover

Visibility (miles)

5
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
48
22
13
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.6
1.4
0.9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
7
8
12
12
10
11
12
11
10
10
9
8
8
8
8
8
9
11
12
12
13
14
16

Chance of Frost

Temperature (°C)

7
7
6
6
6
5
5
5
5
4
3
3
2
2
2
2
2
2
4
5
5
6
7
7

Feels Like (°C)

3
4
2
2
2
1
1
1
1
1
1
0
0
-0
0
-0
-1
-2
-1
-0
1
1
1
1

Dew Point (°C)

6
6
4
4
4
4
4
3
3
2
2
1
1
1
0
1
0
1
1
2
2
3
3
3

Relative Humidity (%)

94
93
87
85
83
88
90
86
86
88
88
89
91
89
89
91
89
88
85
82
80
78
78
78

Pressure (mb)

995
996
996
997
998
999
999
1000
1001
1002
1003
1003
1004
1005
1005
1005
1006
1006
1006
1005
1005
1004
1003
1002

Ozone (du)

322
332
333
337
340
344
345
349
352
352
351
353
358
356
346
344
341
337
328
325
325
319
317
313

Friday 5

Waning Gibbous 98%

No Rise

10:19

16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:58, Set: 15:44, Transit: 11:51. Moon - Rise: No Rise, Set: 10:19. Civil Dark: 16:26 - 07:16. Nautical Dark: 17:10 - 06:32. Astro Dark: 17:52 - 05:50

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
96
85
74
55
72
90
100
100
96
92
70
89
91
100
100
100
100

Low Clouds (% Sky Obscured)

36
59
100
100
100
100
100
91
71
64
55
58
53
45
55
51
58
51
80
77
87
88
69
64

Medium Clouds (% Sky Obscured)

100
100
100
100
40
87
19
21
28
31
2
40
35
100
78
92
31
39
53
74
86
78
82
100

High Clouds (% Sky Obscured)

93
95
100
43
35
5
0
0
0
2
2
2
72
38
100
66
81
55
50
73
100
100
100
97

ISS Passover

Visibility (miles)

9
9
8
2
9
4
9
9
9
9
9
9
9
9
9
9
9
7
9
5
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

3
34
95
95
95
84
52
19
23
8
2
15
35
23
15
26
37
59
42
37
48
34
35
52

Precipitation Amount (mm)

0
0
1.2
1.6
1.1
0.4
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0

Wind Speed/Direction (mph)

17
20
22
25
27
27
26
24
21
18
16
15
14
15
16
17
17
19
18
18
16
15
15
15

Chance of Frost

Temperature (°C)

7
7
7
7
6
6
7
7
8
8
8
8
8
8
9
9
9
9
9
10
10
10
10
10

Feels Like (°C)

1
1
-1
-1
-2
-2
-1
0
2
3
4
3
3
3
3
3
3
3
4
4
5
5
6
5

Dew Point (°C)

3
4
4
5
4
4
5
6
7
7
6
6
6
6
6
6
6
6
7
7
7
7
8
8

Relative Humidity (%)

79
79
81
87
86
85
87
90
91
90
88
91
87
82
82
84
82
84
87
84
84
85
83
84

Pressure (mb)

1001
1000
999
998
996
995
994
992
992
991
991
991
991
991
991
991
991
991
992
992
992
992
992
992

Ozone (du)

310
308
306
308
310
308
311
311
309
311
311
308
302
305
303
301
299
296
296
296
296
296
294
293

Saturday 6

Waning Gibbous 93%

16:45

11:03

16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:59, Set: 15:44, Transit: 11:51. Moon - Rise: 16:45, Set: 11:03. Civil Dark: 16:26 - 07:17. Nautical Dark: 17:10 - 06:33. Astro Dark: 17:52 - 05:51

Total Clouds (% Sky Obscured)

67
92
94
98
97
77
68
83
87
82
100
98
66
43
48
100
100
90
97
100
100
100
100
100

Low Clouds (% Sky Obscured)

60
70
72
71
93
68
63
72
59
63
63
64
33
24
25
28
26
34
60
69
67
63
61
71

Medium Clouds (% Sky Obscured)

42
86
89
95
95
73
3
21
22
18
25
23
8
0
48
80
70
58
55
60
70
82
99
99

High Clouds (% Sky Obscured)

50
50
51
55
60
3
0
0
0
0
0
34
64
43
48
100
100
86
95
100
100
100
100
100

ISS Passover

Visibility (miles)

8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Light Rain
Light Rain

Precipitation Probability (%)

42
15
19
19
37
17
32
25
7
1
2
0
0
0
0
0
0
0
0
4
15
33
91
93

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.6
0.6

Wind Speed/Direction (mph)

15
15
14
15
15
17
16
16
16
15
14
14
13
11
10
9
8
7
8
8
8
8
9
9

Chance of Frost

Temperature (°C)

10
10
9
10
10
10
10
10
9
9
9
9
9
8
7
7
6
7
7
8
9
9
9
9

Feels Like (°C)

5
5
4
5
5
4
5
4
4
4
5
5
4
4
4
4
3
4
4
5
6
6
6
6

Dew Point (°C)

7
6
6
6
7
7
7
6
6
6
6
7
7
6
6
6
6
6
6
7
8
8
8
9

Relative Humidity (%)

84
78
81
78
80
82
80
78
78
81
82
85
85
88
93
94
94
93
91
91
95
96
95
98

Pressure (mb)

993
994
995
995
996
997
997
998
998
999
1000
1000
1001
1001
1002
1002
1002
1003
1003
1002
1002
1001
1000
999

Ozone (du)

292
293
296
296
294
294
292
283
285
287
289
288
287
286
286
287
286
287
288
289
290
290
292
298

Sunday 7

Waning Gibbous 86%

18:13

11:31

16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 OK
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 08:00, Set: 15:43, Transit: 11:52. Moon - Rise: 18:13, Set: 11:31. Civil Dark: 16:25 - 07:19. Nautical Dark: 17:10 - 06:34. Astro Dark: 17:52 - 05:52

Total Clouds (% Sky Obscured)

100
100
100
100
100
97
59
84
89
88
52
80
76
34
71
72
73
84
93
100
92
83
76
70

Low Clouds (% Sky Obscured)

81
91
94
97
100
83
57
46
52
51
52
49
44
34
45
49
48
55
58
60
57
54
53
43

Medium Clouds (% Sky Obscured)

100
100
99
42
33
39
33
23
16
15
14
11
69
3
65
45
3
15
31
54
39
19
20
27

High Clouds (% Sky Obscured)

100
100
81
60
41
36
27
33
31
27
4
25
25
4
35
50
45
63
80
100
80
60
40
35

ISS Passover

Visibility (miles)

1
0
0
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

58
87
88
76
75
54
36
5
14
23
28
21
18
0
0
0
0
0
0
0
4
4
5
4

Precipitation Amount (mm)

0
0.5
0.5
0.4
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

10
11
12
14
13
15
17
18
21
20
19
18
17
15
14
14
14
13
13
14
16
15
15
14

Chance of Frost

Temperature (°C)

10
10
10
11
11
11
11
11
11
11
10
10
9
9
8
8
8
7
8
9
10
11
11
11

Feels Like (°C)

7
7
7
8
8
7
6
7
6
6
5
7
5
5
6
4
4
4
5
6
7
8
8
8

Dew Point (°C)

9
10
10
10
10
9
8
9
9
8
7
7
7
7
6
6
6
6
6
7
8
8
9
9

Relative Humidity (%)

98
98
98
95
90
84
84
87
87
83
82
82
84
87
90
90
90
90
85
85
84
85
85
87

Pressure (mb)

998
998
997
997
996
996
996
996
996
997
998
999
1000
1000
1001
1001
1002
1002
1003
1003
1003
1003
1004
1004

Ozone (du)

298
300
299
298
296
297
299
299
299
298
298
298
298
300
302
306
314
317
321
321
324
326
325
326

Monday 8

Waning Gibbous 77%

19:44

11:49

16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 08:01, Set: 15:43, Transit: 11:52. Moon - Rise: 19:44, Set: 11:49. Civil Dark: 16:25 - 07:20. Nautical Dark: 17:10 - 06:35. Astro Dark: 17:52 - 05:53

Total Clouds (% Sky Obscured)

66
65
67
67
70
81
91
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

37
29
36
44
51
57
54
50
46
38
36
37
38
39
72
70
67
76
84
93
91
89
89
90

Medium Clouds (% Sky Obscured)

57
65
66
67
65
68
66
65
60
50
50
63
80
97
94
93
92
95
98
100
100
100
100
100

High Clouds (% Sky Obscured)

30
30
41
46
47
61
82
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
5
3

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

1
0
0
1
5
4
6
2
0
0
0
0
1
2
12
20
27
64
91
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.6
0.9
1
1
1.1
1

Wind Speed/Direction (mph)

13
12
12
12
11
11
11
11
11
10
10
9
9
9
9
10
10
11
12
14
16
15
16
17

Chance of Frost

Temperature (°C)

10
9
9
9
9
9
9
9
9
9
8
8
8
8
8
9
9
9
10
10
11
11
11
11

Feels Like (°C)

7
6
6
6
6
6
6
6
5
6
6
6
6
5
5
6
6
6
6
7
6
8
8
8

Dew Point (°C)

8
8
8
8
8
8
8
8
8
8
7
7
7
7
7
8
8
8
9
9
9
9
10
10

Relative Humidity (%)

90
91
93
93
93
95
95
95
93
95
93
91
90
91
91
91
93
93
93
91
90
91
95
96

Pressure (mb)

1005
1005
1006
1006
1007
1007
1008
1008
1008
1008
1009
1009
1009
1009
1010
1008
1008
1008
1007
1005
1004
1003
1001
1000

Ozone (du)

327
328
331
336
339
343
347
347
341
338
338
338
330
318
309
306
302
298
296
294
292
292
293
293

Tuesday 9

Waning Gibbous 67%

21:11

12:02

16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 08:02, Set: 15:43, Transit: 11:53. Moon - Rise: 21:11, Set: 12:02. Civil Dark: 16:25 - 07:21. Nautical Dark: 17:09 - 06:36. Astro Dark: 17:51 - 05:54

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
92
83
73
81
88
94
96
98
98
97
96
95
88
84
80
88

Low Clouds (% Sky Obscured)

92
93
92
90
89
90
90
90
86
81
73
79
87
94
86
79
76
67
63
61
61
64
63
60

Medium Clouds (% Sky Obscured)

99
99
100
100
100
74
46
27
23
14
4
4
4
5
26
48
69
69
70
67
58
56
54
46

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
68
36
4
3
2
1
1
2
1
5
10
14
12
15
17
20

ISS Passover

Visibility (miles)

3
4
4
6
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

95
95
95
95
83
67
47
17
18
18
16
14
10
6
6
5
0
1
2
4
4
5
4
4

Precipitation Amount (mm)

0.9
0.7
0.7
0.7
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

17
17
18
19
21
22
22
22
22
21
21
21
22
24
26
26
26
26
26
26
26
24
23
23

Chance of Frost

Temperature (°C)

12
12
13
13
13
13
13
13
13
13
13
13
12
12
12
11
11
11
11
11
11
11
11
11

Feels Like (°C)

8
9
8
9
8
7
7
7
7
7
7
7
7
6
6
6
6
5
5
5
5
6
6
6

Dew Point (°C)

11
11
12
11
10
10
10
10
10
9
9
9
8
7
7
7
8
8
8
8
7
7
7
7

Relative Humidity (%)

95
95
93
87
84
79
79
78
78
77
77
77
75
72
71
75
79
83
81
79
76
76
76
76

Pressure (mb)

999
999
998
998
997
997
996
996
995
995
995
995
995
996
996
997
997
998
998
999
999
1000
1001
1002

Ozone (du)

293
293
293
292
292
291
291
292
292
291
291
291
292
293
293
295
296
298
301
304
307
309
311
313

Wednesday 10

Waning Gibbous 57%

22:33

12:13

16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 OK
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 08:03, Set: 15:43, Transit: 11:53. Moon - Rise: 22:33, Set: 12:13. Civil Dark: 16:25 - 07:22. Nautical Dark: 17:09 - 06:37. Astro Dark: 17:51 - 05:55

Total Clouds (% Sky Obscured)

94
100
92
87
86
65
50
35
49
57
69
69
72
72
77
85
91
91
86
81

Low Clouds (% Sky Obscured)

58
55
48
41
34
35
36
35
29
20
12
16
17
17
11
9
6
3
1
0

Medium Clouds (% Sky Obscured)

36
26
27
32
52
40
25
7
21
38
49
45
38
34
38
31
35
35
35
35

High Clouds (% Sky Obscured)

27
25
19
16
7
4
2
0
1
2
3
11
14
12
40
70
91
91
86
81

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

21
20
19
18
17
16
16
15
15
14
14
13
13
13
13
13
13
13
14
14

Chance of Frost

Temperature (°C)

10
10
10
9
9
8
8
8
8
7
7
7
7
7
7
7
7
7
8
9

Feels Like (°C)

6
6
6
4
4
4
4
4
4
3
4
4
4
4
4
3
3
3
3
4

Dew Point (°C)

7
7
6
6
6
6
6
6
6
6
6
5
5
5
6
6
6
6
7
7

Relative Humidity (%)

77
78
80
82
84
84
85
87
88
88
90
88
90
91
93
93
93
91
90
87

Pressure (mb)

1003
1003
1004
1005
1006
1007
1007
1008
1008
1008
1009
1009
1009
1009
1010
1010
1010
1010
1010
1010

Ozone (du)

320
327
334
331
329
326
323
319
316
316
316
316
314
311
309
308
308
307
306
304

Forecast for Boston, Lincolnshire, United Kingdom (52.98,-0.02)

Generated: 04/12/25 16:42:24. Forecast: 04/12/25 to 10/12/25. Timezone: UTC+0.00